Ventilating device



Dec. 9, 1930. A. CAUCHEMONT 1,784,783

VENTILATING DEVICE Filed Feb. 28, 1929 Patented Dec. 9, 1930 PATENTOFFICE ALBERT CAUGHEMONT, F PARIS, FRANCE VENTILATING DEVICE Applicationfiled February 28, 1929, Serial No. 343,294, and in France March 7,1928.

In my French Patent No. 613,853 of April 1, 1926, I described aventilator for the ventilation of conduits or smoke conduits in whichthe plates, constituting the shell were l disposed in such a way as toprovide only a single lateral opening between each of them turned solelyfrom the right to the left or from left to right.

The present invention has for an object an improvement relating to suchtype of ventilator and which consists essentially in the arrangement ofdouble lateral outlets. To this end the plates constituting the shell ofthe apparatus leave lateral openings between them turned both totheright and to the left. This arrangement has for effect to prevent thedirect entry of wind, rain, snow or hail in the central pipe and topermit a double evacuation of that previously existing. The inventionwill be more readily understood with reference to the accompanyingdrawing, given by way of example, and in which Fig. 1 is averticalsection of my apparatus taken along the line 11 of Fig. 2;

Fig. 2- is a horizontal section taken along the line 22 of Fig. 1;

Fig. 3 is a sectional detail of an apparatus constructed according to myFrench Patent No. 613,853; and

Fig. 4 is a sectional detail relating to Fi 2.

like reference characters indicate similar parts throughout the severalviews of the drawing.

Referring to the drawing more in detail,

and more particularly to Figs. 1, 2 and 4:, my

a paratus comprises a pipe at placed above t e pipe to beventilated andforming a pro- 4 longation thereof.

Said pipe which may be terminated at its upperpart by a conical nozzle6, penetrates in part the interior of a cage formed by a first series ofblades of metalor other suitable material 0 f suitably bent or curved toform a sharp edge and in a way to allow between each of them an opening0? turned directly inside. A second series of plates 0 0 g placedopposite the previous openings at a distance sufficient to leave beforeeach a delivery passageway e is also provided which are provided on eachside with a lateral outlet opening (Z 0Z which face in op= positedirections.

The plates 0 0 9 must be arranged to overlap the opening d sufficientlyin order that the wind, rain, snow or hail cannot penetrate directlyinto the central pipe a. Said plates are preferably terminated laterallyby a flap p '1) turned outwardly.

The plates 0 f and 0 c g are fixed at their lower part on a plate and attheir upper part on a plate Z surmounted or not by a cone m.

The two parts of the apparatus, cage and pipe, are maintained in theirrespective positions by means of a bracket arrangement m.

The above disclosed apparatus operates as follows:

When the wind comes to strike against one of the outside plates 0 c 9the said plate, by its disposition and by the disposition of the flaps pp prevents, whatever be the violence of the wind, entry into any of theinterior openings d and it spreads, on the contrary, to the right and tothe left, creating a first vacuum zone at the double lateral outlets dand d When it comes to move through the space existing between the twoplates 0 c g it meets the second series of plates 0 7 against which itabuts and becomes spread out as previously and creates a second vacuumzone due to its rapid passage in contact with the orifices of the thinwall of the opening d.

All the vacuum produced at the orifices d and (l of the double lateralopenings is exerted on the totality ofair or gases contained indthe pipea which become drawn to the out- S1 e.

While I have disclosed what I deem to be the preferred form of mydevice, I do not wish to be limited thereto, as there might be manymodifications made in my invention by those skilled in the art withoutdeparting from the spirit thereof as comprehended within'the scope ofthe appended claims.

Having described my invention what I claim as new and desire to secureby Letters Patent is:

1. A ventilating device of the type described comprisin an outer set ofelements disposed in cage ormation each of said elements having a flangeat each end thereof, said flanges being so disposed that the oppositeedges of two adjacent elements form an outwardly converging passage forthe ingress of the wind, a second set of elements within the first setand concentrically .disposed with reference thereto, each element ofsaid second set comprising two members set at an anglle .to each other,said angle diverging outwar and the contiguous members of two adjacent Ielements of said second set being so placed as to form an outwardlyconverging passage which opens behind an element ofsaid first set,whereby the egress of air through the last named passage is made easierand may take place from the ri ht and from the left.

2. A ventilating evice as set forth in claim 1, wherein one part of eachof the two-' part elements is substantially radial and the other part issubstantially in tangential relation with reference to an irna inarcylinder passing through the apices o sai two-part elements.

In testimony whereof I have signed this specification.

ALBERT CAUCHEMONT.

